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For motion with speeds less than the speed of light the relation is the same as. The user can control the changes in pitch by swinging the bullroarer around in a. The same shift is observed for moving source or moving observer. Another wave of the same frequency but of amplitude 5mm has intensity iy. Understanding them has not only given insights into sound but many other important topics. Superposition and standing waves superposition constructive and destructive interference standing waves harmonies and tone interference from two sources beats.
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